The network did not previously charge a fee.
Personal Touch group sales director Dev Malle says the charge has been applied for the first time by PTFS, in order to cover compliance and regulation costs.
He says: “We have got fixed costs for mandatory and regulatory issues and we have got to cover them.
“It is a sensible measure, in view of the fact that it is really important to have someone to maintain the compliance and regulatory infrastructure, and part of doing that is we incur fixed costs.
“And while we resisted for some time, we have got to a situation where, with lower volumes over the last couple of years, we have to put in place a fee structure that represents the fixed costs that we incur.”