We are set up with Latitude for 6 & 12 Months Interest Free options for your clients - it is integrated into our TravelPay portal
If your clients already have a
Latitude/Gem Credit Card, they can just use the pay now link at the bottom

Once they have the card, they go back to our Travel Pay Portal and click on the Interest Free Payments - pay link at the bottom:

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It will come up as "PAYING WITH LATITUDE" and that's how they know it will be interest free:
You'll get the full amount as per TP's normal next day processing, and theirs will be set up to have to pay 6 or 12 equal monthly payments.... fee is $8.95/month and from what I can see they have removed the $99 annual fee - winner winner, holiday dinner!!
Initial payment has a 1.5% CC fee (so 0.1% more than a normal Visa)
Happy Selling!!