email and web hosting OTP number change. poor customer service

My mweb email and web hosting service account was closed due to an outstanding amount which I settled. I then informed the consultant I would like to re-open my account as it was cancelled so I can get my domain back which I used for my company. since my mobile number has changed I requested for the number to be changed on their end because I was informed I will need to receive an OTP massage from them(Mweb) . Then sent me a form I needed to fill to complete the OTP number change from my old number to my new number. I have sent the form countless times and informed them on what number I need to be contacted at which is my new number as the old one is decommissioned. its been more than 7 days trying to get them to change the number and for then to calll me on my correct number instead I keep receiving an email telling me they cant get hold of me when trying to contact me but these *********** consultants calling me on the decommissioned number. OTP department is full of idiots and their turn around time is ridiculous.