When to buy a data add-on?

[Ski_Sunday]

I was running low on data, just 700MB left with 3 weeks to go ao I bought a 4GB add-on. If then seemed to stop using my normal data and started to eat through my add-on. Is this normal? I was expecting my normal monthly package data to get used up first and then my add-on data to start being used. Can anyone explain to me the process here?

[Linsey]

If you have purchased an add on it should be used after your plan. So we can have a further look at this I would advise contacting our customer support https://smarty.co.uk/contact They will be able to access your SMARTY account and explain 😊