You will get
1. $15 bonus for signing up any plans in Mint mobile with referral link.
2. 15 off for 3 months for unlimited plan, which is 15*3=$45 bonus
3. extra $10 bonus from Topcashback when you install Topcachback chrome extension and then click activate from Topcashback extension when keep opening referral link.
4. If you have amex mint mobile offer, you will save 45 on spending 90 in mint mobile.