TAKE A LOT / SHUMATA ONLINE STORE

I ordered an HP Smart Tank Printer from TAKEALOT and collected it on the 1st April. it was supp**** by SHUMATA ONLINE STORE through TAKEALOT. It was sold and accepted by me with a 12 month limited warranty. It started jamming paper randomly and got progressively worse by November 8 months after collecting. At this stage it was paper jamming almost every page. I returned it , in its original box with the manual complete on the 14th November. I was assured it would take approximately 21 days to repair or refund. It is now 33 days after and I have sent numerous e-mails without getting a response as to when I will be receiving the printer back. Is a printer meant to last 8 months? How am I supposed to work with up to now a 33 day turnaround time? I do often buy from TAKEALOT and this is the first time that there is such a big problem with an item, which is I am sure you will agree unacceptable. Who is causing, or what is causing the delay here SHUMATA ONLINE STORE or TAKEALOT? Trust this will be sorted out soonest. Warm regards Helen