Sometimes you get lucky so well done.
Living on Skye has numerous benefits but getting warranty work like that can be a problem because of the remoteness.
Our windows are Triple Glazed units each 2.5m x 1.2m They weigh a tonne. After a couple of months we noticed one was shedding glass chips in the house and then developed a crack on the inner pane.
I sent photos to the company and they didn't quibble about sending a replacement. They also arranged for two fitters to come from the south to swap the window out.
The window arrived and it took 3 of us to get it off the back of the truck. The fitters arrived a couple of days later. Removed the cracked window, then lugged the new one into position and tried to fit it in place. It was too big. The old one went back in.
I listened to the one sided telephone conversation between the fitters and the window company. It seems the computer had been spitting out dimensions that were 10mm oversize from what they should be.
Yet another window dispatched; fitters returned; it all went well. They didn't want the oversized one back so a friend had it and used it to build a shed.