Bad customer service

It is so disappointing that I have to come on this platform because Sterns N1 can not deliver on good and basic customer service.I have been calling the Sterns N1 Branch for the past two weeks and was dealing with Chane. I purchased a watch the 4th of January 2022 and lost my slips and the watch just stopped working. I went to one of the tfg stores to ask what to do about the broken watch maybe book it in or something to get it fixed. I have been calling having to check up because no one in the N1 Branch can follow up on my slip. Eventually chane could get the slip but now the problem is that I can't get the slip they have been trying to email me the slip but nothing this is so unprofessional not following up not trying to go the extra mile for your customers. I think it's not acceptable that your customer has to phone and keep phoning to check on what's going on. I am a very unhappy customer and this is not the service I expected from a big brand store like Sterns.

The watch was bought in January so I would like to think that I can get assistance with this matter I'm getting no where with Sterns N1