Well I decided to phone up BT faults again first of all and tell them what had happened, he put me through to another department who deal with incorrect fault charges.
I explained it all again and this lady said that the second engineer had put that he could find no fault with his 'Hawk' test equipment, so I asked her about if he put down the crimp joint he replaced and that still have the corroded joint he cut off,
she said he had not put it down.
She said just pay the other part of my bill for now (which I was going to do ) with out the over charge .
She is going to ask the second engineer why he did not make a report about the crimp he replaced and get back to me in the new year ( I told her since he replaced the joint our phone and broadband have been ok.).
Not once have I at to talk to 'India' call center.