How much is it to fix on a president bracelet

[Evangarcia4]

Hello to all this is my first post I purchased my Rolex day date, dates around 1968 looks great real happy with my watch according to the seller says mine came with a leather strap back in 68, so I purchased a factory Rolex bracelet that dates 1968 as well comes with buckle, it has some stretch it's bark finished so I wanted to ask if Rolex will fix the stretch only on the bracelet I'm due for service till 3 years,,,has anyone done this I've read they try to sell you a new one or replacement bracelet if they have it, that's like 8000k for that only, any help would be great