Capital Legacy continues to debit my account while policy cancelled policy and no promised refund paid

Capital Legacy kept debiting me twice, one debit at the end of the month and the other, at the beginning of the month. I reported this on various occasions with proof. They promised they would investigate, they began with investigation and found what the issue is on their side. They promised to refund erroneous amounts debited but nothing until now. It's now a time wasting exercise to be following up and checking etc. Please people, once again this is very serious.