My grandfather recently gifted land to both me (his grandson) and my uncle (his younger son). The document writer advised us to register the land jointly in both our names before proceeding with partitioning. However, after receiving the documents, the same document writer now insists on another registration for the partitioning. This has resulted in unnecessary expenses for us, including challan fees and his service charges. I'm considering filing a complaint against him. How should I proceed with this?