Take A Lot - No Refund

We bought a Mi Box from Take A Lot. It was faulty and Take A Lot collected it a week ago. On their site they say they will return the money into our bank account but they have not.

We have written to them on their help page but they do not respond.

They have fantastic stock and their courier service is very good but if they don't refund you or answer you when you have a problem its better not to buy from them