A developer forged the signature of a client and signed the SPA. What to do?

Hello everyone,

I bought an off-plan unit from a developer around Feb. 2018. They promised to deliver by March 2019, but they kept on postponing. Along the way, they asked me to sign the SPA. I said I won't and requested them to refund me my payments.

At one point they agreed and later they said no. I have all these correspondences on email. Finally, the developer forged my signature and signed the SPA by themselves and registered it with DLD, and processed the cancellation.

When I visited DLD, I have been shown an SPA signed under my name on May 13, 2021. The signature was done fraudulently because I did not sign it. I made a payment of more than AED 130K. I would appreciate your guidance.