First and foremost,you have to convince your PSAs that they are in real Business with the SFI.After that,you have to introduce to them different venues of accruing points in SFI.You can also give them incentives through Gift certificates.From there,you can tell them to set up standing order because it will ensure them to re-qualify each months and that means going forward with the benefits you have accrued the previous month.That is,they will not lose CSAs and ranks.
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