Advance Paid but Machines are not yet received

I am director of a Pvt Ltd company registered in Delhi and plant setup in Jharkhand, my company has requested some machinery from Ludhiana again a Pvt Ltd company in May 2023, advance payment has been done to the company as agreed. After several follow-ups and reminders somehow we receive few of machineries in Aug 2023 though we still left with one of machine and advance for same was pending with the company (Ludhiana), again we started follow-ups and finally in the month of Jan 2024 we agreed that he will give us a different machine and not the original order. The supplier company called me in Feb 2024 that Machine is ready to sent to us with transport shared the invoice copy along with E way bills on 13th Feb 2023 and demanded the balance amount, finally we have release the amount keeping fraction of balance with us to pay him only after receiving the delivery confirmation (Bilty/photos of loading the machine in truck) which is agreed by company (Ludhiana). after this they again restrain to pick our calls and providing any further details on delivery of machines. please advise.