What's the top up amount required to downgrade the plan to free?
There is no hidden fees or other top up amounts to downgrade to the free account I received those SIMs for free as well as a power bank and a selfie stick and as soon as I used up the first month I downgraded to the free plan and had it ever since ,I must have had two accounts already open for around a year or more.
Now if you don't cancel your 2 gigabyte plan after the first month they're going to charge you the fee for the 2GB plan so make sure to downgrade your plan and even should they accidentally charge you you just call them up and they remove the charge no problem I had to remove the charge two times as I forgot to change the plan.
And as usual keep an eye on your credit card to make sure they're not charging you as they accidentally upgraded your account.
I wouldn't advertise this product if I haven't used it myself.
And special for
@Davidthebest here's a picture of the free plan.