Onsitego - Fraudulent in extended warranty service of Onsitego (from Amazon.com)

I bought Ricoh sp*** printer from amazon.com in February ****, along with onsite go extended warranty (Feb ****-feb****). Now my printer has issues and after inspection of the printer by onsite go engineer, onsite go is saying that they are not able to repair the printer and they will provide a replacement. But after a day they called me and said, we will provide amazon gift voucher worth Rs ****/- which was the purchase price of the printer. But now the market is different. At the time of purchase, all online seller was offering huge discounts up to **%, but now that much discount is not available on any laser printer. So how can I accept the previous value? I want the current value or replacement. Replacement is a better option for me as its mentioned in terms and conditions that if the onsite go is not able to repair the product then they will provide a replacement. But now onsite go is forcefully want to give me amazon voucher of past value of the product. No printer is available at that price in the market of the same specifications.
This is not justice if the price goes high then the company is not ready to provide replacement and offering old price then what's the use of the warranty.
I am bearing the loss of ***/- daily as taking printouts from outside. If the similar printer is not available in the market onsite go have to provide equivalent specification printer, which is mentioned in onsite go's terms and conditions.
I want printer only, that too of the same specification. Looking for your support to sort out this issue along with compensation of daily loss of ***/-( Monday to Friday in a week) and if any prestige issue occurs due to non-availability of the printer on time is the responsibility of onsite go.