Sanlam ********* and dishonest

I have had a personal loan with Sanlam personal loans for a few years now. I updated my details with them which never happened and is now causing me great difficulty. When I tried to make a payment arrangement over covid as i lost some of my income,i was unable to get through to the call center, i did not get a response to my emails and now they are taking double debits out of my account without my authorisation. I am a single mother with one form of income and cannot afford for all this money to just be taken from me. Please can someone sort this out! It is ********* and dishonest. Please don’t use Sanlam.