Poor customer service, lack of accountability

I Bought a Canon 2420 printer from Hemingways mall in May 2023, having constant issues with an error when printing photos, printer stops then give 6940 error, took it back after getting the error a few times, they sent it to their supplier only to get it back still doing the same, the supplier tested it with no fault, repeated the process just with the same result the second time, now I'm in the store for a third time and they want to repeat this process again. The 2IC phoned the branch manager just to be told that they can only do the process on Tuesday. I lost over a month's printing and as a photographer this is unacceptable. I had to phone the store the last time to confirm if the printer was repaired, this was after the 21 working day wait. I am wasting fuel driving to the store, losing ink while they do their tests and not finding any faults. The supplier does not want to assist even after the store sent them the video proof I took of the issue, they still not wanting to get Canon involved to get my issue resolved. Raymond’s reply 13 Dec 2023 at 15:28 I am quite disgusted that no one from Head Office has phoned me to try and resolve my issues...this is now 10 days later. Not even a call from the manager or supplier to try and get this issue resolved properly. No one has made an effort to help me resolve this issue. The situation is frustrating because there's no way to even get Canon directly involved.