I asked a representative named "John" to change my phone number. Customers are allowed to make one phone number change free per year. Gen Mobile was given my zip code, & as computer systems go, zip code generation matches the area code. I had a Colorado zip code & thought to change it to a Chicago one. It remained a 720 zip code, after the change, & he lied about the amount of time it took for the phone number to change. Another rep, "Alex", couldn't explain why, if a Chicago zip code was entered, a 720 zip code was generated. I just came right out & told her the probabilities, & how area code generation works. She couldn't explain, however said he put a note in the computer of the zip code. I just came out & told her the importance of doing as the customer said. She told what came off to me as a self protective lie, when I asked about speaking to a supervisor what "John" had done. She said there wasn't one available. I countered, having worked in a call center before, there's always @ least one supervisor available. I point blank told her she was covering for John, & asked her if she was telling me take it or leave it. She admitted she was. In summary, it was made clear the desired & required askance. Not done. Then, spoke to a second rep who was unwilling to correct the situation or let me speak to a rep. 23666899