When I canceled my television portion of my contract and increase the MPS of my internet from 50 to 100 I was assured that this would be acceptable. However; when my internet had become difficult and not smooth I had called in to Frontier and a in house technician advised that in the time I was supposed to be receiving 100 MPS internet I was only receiving 75. I had been charged and paying for the 100 MPS service. When I had become agitated that I had been paying for a service the only offer that Frontier was willing to credit me was for a 3 month credit. I became more agitated and requested credit for services not provided since switching. The billing specialist was adamant that he would not escalate the problem and that I was unreasonable.