Verizon Wireless customers who still have grandfathered-in unlimited data plans and use more than 100GB per month are being asked to pick a limited plan by Aug. 31 — or face losing their accounts.

According a Droid Life report, if those highest unlimited data users don’t take that option and their line is disconnected, they will have up to 50 days to reactivate, but can only do so by switching over to limited data packages that require payment of overage fees.

Verizon stopped offering unlimited data to new smartphone customers in 2011.