Stole my money

I ordered stuff online on Thursday, 8th. I paid the amount outstanding in order to have the order processed. One of the items were out of stock, so on sunday they called me and asked if i wanted the item redelivered or refunded. I said redeliver. A few minutes later i got an email stating that they cant redeliver because i havent been charged for the item. I sent them a screenshot showing my proof of payment. I did pay for everything. Sunday evening, instead of refunding me, they charged my bank acc the full amount again minus the out of stock item. Instead of owing me R50, woolies now owes me R340. Can you please rectify this incredibly stupid and pathetic service??? Good heavens i havent seen so little braincells together in a long time. I will definitely move my online shopping to pick n pay in future. Im not keen on getting ****** from like that. Please refund my money R340 ASAP.