An old Customer that is Extremely Unhappy

Hi.. Ive been an Mweb client for mirenthan 20 yeras. Ivw requeated for my mobile number to be changed several times and yet nothing was done. The frustration comes in when one cannot call a company but speak ti Call Centre agent via a Chat. They take about half an hour to find you an agent to speak to. I nees to reaolve this issue. My Debit iirer never went through and Im trying to speak to someone in Billing or Accounts. There's iver enough. Monies in my account and Im getting emails saying my account will be suspended. Without my new mobile number thtas nit listed on my profile I have no way of contacting anyone at Mweb cis the OTP that gets sent goes to a number not in uae any longer ans hasnt been foe the last 4 years. Ans getting hold of someone or speaking to someone is just not in cards. I am so frustrated.