You have a riming belt and as mentioned by another member – do not hesitate – replace it if it’s due . I changed mine in 100,000km don’t too sure if it’s miles but strongly sugest you change it in every 90K – reason is even is we do not run the 100k, e.g in a traffic our engine runs right ? which means the belt is moving – belt snapping can fix you up for a good amount.
NO – not all maccas can fix it- seems simple enough – but there is a lot you have to check- advertising is not recommended hence drop me a PM.
Also try not to cut corners – replace with originals, and all components such as belt & U should have 3 razors – should be apx Rs. 15-18,000/- but worth the amount.