How do I apply a payment to a specific instance of a special financing transaction?

[Rustyone]

How do I apply a payment to a specific instance of a special financing transaction? When I pay, it reduces the balance on the transaction that is due later, but I want it to apply to the transaction that is due sooner.

[sharpiemarker]

@Rustyone 

"We will use each payment in the amount of the minimum payment due or less, first to pay billed monthly plan payments on any Easy Payments purchases, then billed interest, then billed fees, then the principal balance, and then any other amounts due. However, if you have a balance on a deferred interest purchase, during both the billing cycle preceding its expiration date and the billing cycle in which such deferred interest purchase expires, we may use the payment, after the amount to pay billed monthly plan payments on any Easy Payments purchases, to pay the balance on such deferred interest purchase(s).  

We will use any amount in excess of the minimum payment due to pay the balances with the highest interest rate, then the next highest interest rate, and so forth. However, during both the billing cycle preceding the expiration date and the billing cycle in which a deferred interest purchase expires, we may use payments first to pay the balance on such deferred interest purchase(s)."  

https://www.synchronybankterms.com/gecrbterms/pdf/PAYPAL_CREDIT.pdf

You can contact customer service to try to allocate payments (which is a hit or miss based on observation so be prepared for some possible hassles):

Log on, click HELP on top menu, scroll down to click CONTACT US, and then scroll down to click CALL US.

Call early, during business hours, west coast time to try to get a US rep. 

Or private message via social media:

Facebook (US): https://www.facebook.com/paypal

Twitter (US): @AskPayPal