I went to the website & tried putting the serial numbers but there was a tab there saying to put purchase date, which i don't remember & I've lost the bills
Can I still track the purchase date etc & track the warranty from putting the serial number on the mouse?
Thanks
Without bill,logitech rma centre will just calculate warranty from the date of manufacturing based on serial no.(+some grace period).
If you bought it from Amazon then you can find out the date of purchase from your purchase history.
And if purchased offline or from a not-well-known site, you could try requesting a copy of the bill from the store/site.
Non availability of bill is problematic. Usually small store keepers don't cooperate in providing a copy of the bill, especially if they are masters of tax evasion or you bought it before the arrival of GST.