TFG is a nightmare

TFG has become a nightmare everymonth payments are made to them but they never update those payments on ITC which affects my Credit score and I have been asking them to remove me from they Telemarketers list they call 3-4 times a day no matter how many times I block their number they always come back with another number. Their customer service is the worst even their whatsapp number Toby is so useless