Change of Cdellphone number - OTP purposes on the website

I called Bankmed on Friday the 12th Oct 2018 - requesting that they change my Cellphone number for OTP purposes to my recent number so that i can update my details. They logged a request for me and said it should take 2 days. I've been calling everyday and they tell me the same thing that they are escalating the issues and will call me back and i have not received any feedback.

this should be just update of contact details but its taking the whole week - where i have to call and be put through to different people everyday like they don't even know who is supposed to do the update.

i'm really frustrated and not happy at all with the feedback I've been getting from bankmed.

Please can you sort this out asap