Bad online customer service/upgrade

My husband upgraded on the 1 July 2021 to a hauwei p40 lite with the watch. 4 working days went by and not delivery. He called them and then he found out its not the watch they initally told him and that they currently have no stock. So we'll need to wait until they have stock of the watch. Then Monday (12 July 2021) he calls again and yet again they saying they have no stock of the watch only of the phone and the watch will only arrive this Friday (16 July 2021) and then we'll need to wait another 3 to 7 business days for the upgrade to be delivered. He called today to cancel the contract with the watch they saying it will only be in stock in the next month. He took the cellphone contract as is. Now the agent is saying the first one must first be cancelled and then the new one processed without the watch and once that's then then another wait of THREE TO SEVEN WORKING DAYS!

We've been loyal paying customs for the longest time and this is the kind of service we get?

Clearly the first agent was just trying to push a sale and everyone after that clearly doesn't give a flying hoot.

Can someone please assist me and my husband asap?