QIWA notice period and your contract

I m facing a problem after resigning on QIWA firstly I finishing 60 days resign notice on QIWA and receive transfer request after I accepted transfer request another notice period started for 90 days then I read again my contract there was no clause or condition for 90days notice after finish resign notice when I told my employer why did you apply extra notice 90days he threatened to ruin my career by email afterwards I hold on and requested new employer to wait for me and keep transfer request open for me but it looks I have lost my new job with current. I discussed my case with QIWA system they informed its general rule for all employees to serve 90days notice with current employer to complete transfer but if current employer is good he may reduce this 90days please share your case also and what is the solution