OneDayOnly worst service received

Worst service when it comes to replacing faulty stock that they sell to you. I purchased a Robo Vacuum from them, whihc they advertised at over 40% discounted, but yet I find that this product is sold for the same everywhere that stocks them (only checked this recently after the fact, because I trusted OneDay to be best price wise). But this is not the main issue here, I didnt know that they actually also sell on USEd electronics, because when I opened my RoboGem box, took out the vacuum, I saw that the top of it had so many scrathces and marks, even where the Power buttons are, was damaged and it looked like I just got given this from someone that was using it for over a year already, damaged and old out of the box. I took pictures and submitted a return on 19/07/2022, I requested a replacement with a new unit, because I paid for a new unit since I do not know that OneDayOnly sells secondhand items. I am still waiting for the replacement to this day, with absolutely no indication of whether I am getting 1 or if they going to rather refund me, infact the only response I get is the below everytime I ask for feedback:

"Ra-Eesah D, Jul 25, 2022, 09:02 GMT+2: Hi Ryan,

Thank you for your email.

We have not received feedback just yet.

As soon as we have an update we will let you know."

"Ra-Eesah D, Aug 1, 2022, 09:15 GMT+2: Hi Ryan,

Thank you for your email.

We have been actively following up with the supplier, we are awaiting the tracking details of your replacement.

Once received we will provide you with them. Kind regards,

Ra-Eesah D Customer Success"

They have had 2 weeks to assess and finalise and it is still not done, and please note that I contacted them requesting feedback to only then receive the above responses.

Last time I will buy from OneDay, you can get the same products from Makro and others for the same price