Termination of SPA and claiming refund after project cancellation

I had Invested in an upcoming residential project in June 2018 & paid 20% of the total property value.

But there has not been any progress in their construction & also checked with Dubai Land Department & the developer as well for the status, and learnt that it is probably under cancellation.

I requested via email to the developer for a refund but they have instead suggested me to opt for an ongoing project or a ready to move in property.

But I do not intend to proceed & want my money back at the earliest possible. I have the SPA & proof of payment made i.e. Invoice as well.