Changing my number and not able to withdraw

Hi, I hope this will find you well. I'm this because I want you to know how I feel as your customer. Ive been trying several times to change my number and for several time visiting one of your branches in Durban South Beach( Poind Road) but up until now I don't get the help I've been asking for. I even recieving calls from you telling me that now I can be able to change the number, But everytime Im trying, it is not happening. You are my most favourite betting site, but this unsolved issue will dent my love towards your site. The sad thing is that, the deposit option is working very well on my accout but the withdral option is not working, I cannot withdraw but I can do deposit, this is unfair. Can you guys help me.