Personal information at checkout

went into a big box store today , bought a couple small items .. then here comes the questions, phone number? which I gave her a false one , says , can't find you .. Name? I said, no thanks, just let me pay here and I'll be on my way, well we need it for warranty and returns (it was 1.29 drop sheet for paint spills) sorry , don't want to give my info ..she I think wanted to tell me I couldn't buy anything ..

and, a lady all dressed up in fancy clothes, picked up a special mixed gallon, paint lady didn't get lid on tight, all over it went .. wow, was that a mess