The landlord has the upper hand if you can't physically go collect the amount yourself. You should strenuously object to paying this fee, in writing, citing Pennsylvania law and your lease. If your landlord persists, I recommend you pay the wire transfer fee of $75 and then slam this guy in every corner of the Internet. If you don't have a special non disparagement agreement you incur no liability by warning others of what a sleaze ball this guy is and how nobody should ever rent from him. Lawyer types will advise against this but you need to know when to ignore lawyer types. Truth is an absolute defense to claims of defamation.
See, for instance, this section of the Pennsylvania Landlord Tenant Act of 1951:
Section 250.512. Recovery of improperly held escrow funds
(a) Every landlord shall within thirty days of termination of a lease or upon
surrender and acceptance of the leasehold premises, whichever first occurs, provide a tenant
with a written list of any damages to the leasehold premises for which the landlord claims the
tenant is liable. Delivery of the list shall be accompanied by payment of the difference
between any sum deposited in escrow, including any unpaid interest thereon, for the payment
of damages to the leasehold premises and the actual amount of damages to the leasehold
premises caused by the tenant. Nothing in this section shall preclude the landlord from
refusing to return the escrow fund, including any unpaid interest thereon, for nonpayment of
rent or for the breach of any other condition in the lease by the tenant.
(b) Any landlord who fails to provide a written list within thirty days as required
in subsection (a), above, shall forfeit all rights to withhold any portion of sums held in escrow,
including any unpaid interest thereon, or to bring suit against the tenant for damages to the
leasehold premises.
(c) If the landlord fails to pay the tenant the difference between the sum
deposited, including any unpaid interest thereon, and the actual damages to the leasehold
premises caused by the tenant within thirty days after termination of the lease or surrender and
acceptance of the leasehold premises, the landlord shall be liable in assumpsit to double the
amount by which the sum deposited in escrow, including any unpaid interest thereon, exceeds
the actual damages to the leasehold premises caused by the tenant as determined by any
court of record or court not of record having jurisdiction in civil actions at law. The burden of
proof of actual damages caused by the tenant to the leasehold premises shall be on the
landlord.
(d) Any attempted waiver of this section by a tenant by contract or otherwise
shall be void and unenforceable.
(e) Failure of the tenant to provide the landlord with his new address in writing
upon termination of the lease or upon surrender and acceptance of the leasehold premises
shall relieve the landlord from any liability under this section.
As long as you provided a valid forwarding address as per (e) above, the language in this law can only be interpreted as creating a burden on the landlord to remit the difference to you. Any amount withheld must be itemized and only cover:
He must send you the itemized list within 30 days. He cannot put on the list "$125 mailing fee" or "$75 wire fee"; well he can, but those aren't valid deductions, particularly if not agreed to in the lease (possibly, they aren't even valid if you do agree, due to (d)). As long as you gave the landlord your mailing address, your landlord is liable for returning your deposit - there is no mention that he can charge for this (well he can, but your failure to pay doesn't remove his liability, so effectively he cannot require that you pay, only ask).