Disgusting service from Woolworths Financial Services

I recently took out a loan with Woolworths Financial Services , the agreement was that the installment would be R891.00 for the amount provided , to my surprise upon receiving a statement I learn that R2263.63 is due i contacted the call center over 3 weeks ago to query this and I was told that they cannot reverse the debit order The teamleader promised to get back to me and also informed that the debit was scheduled for April , however it has gone off in March What am I supposed to do now with an unplanned debit order and salaries being affected in the lockdown period I am very DISGUSTED about the lack of service I received from you guys , when I requested for the sales call I was told that I will have to pay a fee??? How does that make sense ?? Im querying being overcharged and you still want to make me pay ?? Someone needs to resolve this and get back to me with remedial action ASAP