Belgian SIM for day trips once/twice per year

[NFH]

Originally Posted by VladS

I don't know if Lycamobile provides nano SIMs, but they now offer data as part of their Belgian service at €0.10/MB.

No top-ups are required, just a chargeable activity every 120 days.

That's perfect. Thanks! I hadn't noticed that Lycamobile operates in Belgium.

One potential problem though - at http://www.lycamobile.be/en/nationalrates it says "Lycamobile mobile internet is only available to Lycamobile PLUS customers to use in Belgium". What is Lycamobile PLUS? I can find instructions on how to transfer to it but what else does it entail?