@mailvdutt, Never ever withdraw an application, if you have physical presence of 1095 days, it proves them they did right by issuing you RQ. In second RQ you do not need to send that many documents. In my RQ(only first), I just send my t4 and house property taxes and my transcripts for the university that I attended thats it. for 4 years there were some 12 documents in total, may be like some 40 pages. you do not need to send tons of documents to prove your residency.
good luck
good luck