Prepaid plan switch before end of month

[KiDkoLa]

How will I be charged if I switch plans a week or days before the expiry date? For instance if I switch plans from a $25 monthly plan to a $39 monthly plan one week before my expiry date, will $39 get deducted from my balance and then another $39 on my expiry date a week later? Please tell me how switching plans will be charged.

***Edited to add labels***

[TheOrangeGuy · Accepted solution]

There are no billing cycles on the prepaid service per se. For instance, if your $25 plan was paid for up until October 25th and you decide to change plans ($39) on October 18th, the $39 will be taken immediately and will be valid for up until November 17th. The 30 days will restart when you change your plan. That said, keep in mind that you will not be refunded for the few days of service under the old plan, so if required you may wait a day before your current plan's expiry date before changing.

Hope this makes sense!