No transparency for resizing rings

My husband and I bought our wedding rings from American Swiss from Mall of Africa on laybye for our wedding over the coming weekend. They were both small and when I asked how much they would be for resizing I was told that the resizing would be R90 per band that needed to be resized.

I then called on 15 March because we needed to use the rings pre-ceremony so I wanted to find out what the timeline would be to confirm if we could use them or whether we needed to make plan B for the pre-ceremony. When I called I was told 3-5 business days, which was fine as it was within the time frame (hopefully getting them back on day 3). We then went to the store to pay the balance of the rings on the 15 and again asked the same question regarding the turnaround time for resizing. Then I was told 3-5 business days, starting on the Monday as the jeweler on went in store to do collections on Monday. That was the first frustration. We asked if there was any way he possibly did them before but they said no as the jeweler goes into the store only on Mondays.

Moving on to the resizing, my husband's was taken to resize with no issues then when it came to mine, I was told that I would actually need a shank and that this would cost more than the R90 they had initially disclosed. This was now my second frustration. They confirmed they would send it to the jeweler who would do a quotation and the lady from the the store would then call me on Monday to confirm what the jeweler says. The third came when I was called on Monday by one of the ladies from the Mall of Africa store saying that my rings were ready for collection. Was the agreement not that I would be called to confirm what the jeweler says to see what options I have? Then to be told that I must pay over R1 400 for the resizing of the rings?! I was left dumbstruck because this is nearly half the price I paid for the rings.

I wish I would have been warned before so that we could budget such costs as weddings are generally expensive. This is more than 5 times the amount that we had budgeted for our resizing. This having to fork out such an amount for this I wont even saying is inconveniencing. Had I know about when I bought the rings like the R90 I would have been fine as this was disclosed. Now I am told to pay an amount I did not consent to. Please see how this can be resolved