Is balance roll over to a next period of (?) allowed with SPS PrePay SIM cards?
Yes. Upon an early top up the remaining portion of validity period of (partially) unused voucher will be added to the expiration period associated with next voucher top up. However this will be shortened to 24 months, as this is the maximum validity period that will be allowed. The total maximum unit validity period for any credits cannot at any time exceed the longest validity period available for any of the vouchers i.e. 24 months. Example 1: Original voucher of 50 units with a three month life. 40 units are consumed within the first 3 weeks and a new top up of 5,000 units is applied to the account. This gives a total available credit of 5,510 units (including bonus of 500 units) with a validity of 24 months and one week from the date of top-up. (However this will be shortened to 24 months, as this is the maximum validity period that will be allowed). Example 2: Original voucher of 5,000 units plus 500 bonus units with a 24 month life. 4,000 units are consumed within the first 12 mon
