Super Smile Bright
Moneys paid but not refunded when product returned

I returned super smile product for a complete refund of funds paid direct debit from my account totalling $197.75 and have still not received a credit to my account. I sent the parcel registered post with a number of RL18317412 and received confirmation that it had been collected on the 22nd January. Can this be followed through so that I may receive money owed. Thank you