Return and refunds process

I've been a loyal customer for over 10 months and have always received good service from the store in the past. I have purchased a number of devices with no issues. <br> <br> On Saturday 16 May I purchased a Twisp edge device which turned out to be faulty. I returned it on the 17 May and opted for a refund. The store gladly accepted the return and advised that Timothy would contact me to process the refund. On Monday i followed up with the store after no contact was made and was advised that the head office will contact me. No contact was made. <br> On Wednesday i contacted the head office and was advised that the computers had crashed and a refund will be processed. Just my bank details are required. I obliged and provided bank details but nothing has been processed to date with no further feedback from Twisp.<br> How long does it take to get a refund and what hoops does one have to jump through to get it processed?<br>