You won't need to request an increase as your ZebitLine can grow with you. We re-evaluate the performance of accounts on a 3-6 month basis and may increase your ZebitLine. Payment history is important in our evaluation of your ZebitLine and late payments may prevent you from getting an increase. So once you make your first purchase, please remember to sign-up for auto-pay so you do not miss a payment. For example, a ZebitLine of $150 could grow to $400 in 1 year with regular payments on your purchases.