TouchnGo offers 20% rebate for anyone who incurred 80 transactions a month on the highway, you can get 20% rebate based on monthly total usage.
Zing card holder would get extra 5% toll rebate too. (This one Im not so sure though)
Please check whether Zing allows extra 5% rebate?
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20% Rebate Toll is a frequent travellers programme sponsored by Malaysian Government for all qualifed Touch 'n Go (TNG) card users who use the TNG card for toll payment at all highways from September 1 2009 onwards.
To qualify, cardholders will need to use TNG card a minimum of 80 times to pay for any toll payment in all highways in Malaysia within a calendar month. A 20% rebate is given to the qualified cardholders calculated as 20% of all the transaction amount. To view the rebate entitlements, cardholders must register in this portal. Cardholders can redeem the rebates via card reload at all the 136 TNG sales counters.
Touch N Go Sdn Bhd (TNG) is the operator of Touch 'n Go, SmartTAG and The Central Clearing House System (CCHS). Incorporated in October 1996 and officially launched its services in March 1997 at Metramac Highway and PLUS Expressways, TNG provides contactless means of fare payment services via a pre-paid e-payment card called the Touch ‘n Go card.Touch ‘n Go enhances the convenience and efficiency of paying for low-value but high frequency transactions.
https://privilege.touchngo.com.my/http://www.maybank2u.com.my/mbb_info/m2u/p...sonal/CRD-Cards