My telephone service (line & calls) is provided by Internet Telecommunications plc (
www.itplc.com).
They charge a late fee of £20, and this is clearly printed on their invoices and in their terms and conditions. I've spoken to them, and they agree that this is a penalty charge, and refuse to provide a break down justifying the charge.
I've had several arguments with them regarding the legality, and they simply belittle me, tell me I'm wrong, and that they are fully justified to charge this as it's in the contract I signed, printed clearly on their invoices and has been endorsed by their lawyer.
I've explained that whilst this may be the case, case law shows that penalty charges can only be applied by the courts. I've also explained that the contract was not negotiated with myself and the clause that specifies penalty charges is unfair and contrary to common law.
Short of starting legal proceedings for just the one charge of £20, what can I do to make this company wake up, do a bit of research and find out that their penalty charges are illegal?