Not enough memory

<p>I have iPhone 6+. Have always problem of not enough memory, I keep on deleting photos and apps. I really don't have many. All the time getting message " storage is full". It is very frustrating. I took phone to i store, they say possibly there is some error in memory reading. I need to wipe off and reset phone, and I need to pay for it. I am very disappointed and considering to change to another brand. My husband has Samsung, never had memory problem and has 10 times more photos than I have. It is very inconvenient to have expensive phone and struggle with it. Do all iPhones have this problem? Can I get refund and get other phone?</p>