None Delivery Dispute

tajasti1

I ordered from EBuyer for items £100+, paid (via debit card) for the standard delivery which was 3-5 working days. The delivery was marked as received 10 days ago, however being home all day I know nothing was received and nobody came to the front door which is where it is claimed to have been left. On the Yodel tracking it says delivered but no signature due to Covid-19.
Call #1 - following day I called to dispute and say package wasn't received, customer service said they will dispute & get Yodel to speak to the driver & have an update in 24hrs & that I would get an e-mail.
Call #2 - called 46hrs after the initial call to discuss the status, I had no e-mail & still no package. Was told by another customer service that it is 48hrs and that again I should get an update by e-mail by the end of the day.
Call #3 - told that there was no GPS, signature or photographic proof provided by Yodel but just a response saying it was delivered and left by the front door. Again confirmed I was in the front living room all day & nothing was received, told will dispute with Yodel & get back to me.
Call #4 - Another 2 days later I call back, on hold for 40mins to explain the situation for 3, to be put on hold for another 20min and then get cut off. Gave up and would call the next day.
Call #5 - sick to the back teeth of the run around I log an official complaint with ebuyer and request a call back as the advisor couldn't do anything about the issue and that they were waiting for yodel to confirm so that ebuyer could claim the money back. Told them that my contract was with them & if they choose to pick the worst delivery company then that's not my fault. There is no proof of delivery & for them to refund me & they can dispute with Yodel till the cows come home.
Call back #1 - Finally received a call back from snr advisor saying she has chased within yodel and will get a resolution by tomorrow & will call me back.
Call back #2 - today, received the call back & was told that all Yodel have said is that it has been delivered & left at front door but supplied no proof and that she has escalated it to her manager who has escalated it to Yodel again, Told will have a resolution by tomorrow.

As you can see from the timeline, 10 days to dispute a lost package when there is no data or proof is starting to wear thin. The service from ebuyer has been beyond abysmal, not one did they hit the targets they set themselves to resolve and yet again I get told to wait for Yodel. I am now going to get a callback from said manager tomorrow but I would like this to end and for me to get my money back as I never really want the pleasure of dealing with either firm again. 

My question being how can I now bring this to a close, I seem to be stuck in a loop of waiting for Yodel to come back to Ebuyer and then just saying it has been delivered. I have a call with the manager tomorrow at some point between 9-6 (always rings at 5:30pm) & want to close it.