U count

hi joined u count a while back. If I register on the site (u count), the OTP is sent to an old cell number. I contacted u count and they advised me to go to the branch to change the cell number. When I went to the branch they advised me that there was nothing wrong with my number and I must contact u count. I asked the branch to change my number on my u count profile and was advised that I need to contact u count. I am been sent back and forth. Will someone please help.