Terrible service and communication

Doing a follow up review on my 12 March review. Nothing short from pathetic service. It took Marquis finance another 2 weeks aftermy laat review and many emails to them to admit they made a mistake with a double debit order. This is after n already +-3 week fight sending them statements, hi lightning all mayments. Another week later after emails send they now only handed this over to the department to proses the refund. How long it will take before we see our money again, I dont know. And do you think they will deduct interest on the finance for this period for being paid upfront?? I won't recomend them even to my worst enemy. NO words can describe our frustration and disappointment.