Switching out and back to Smarty for deal?

ladyhepburn

I've seen people talking about switching out of Lebara and back to keep getting the cheap 'new customer' deal, but has anyone done this with Smarty?

I recently started one of their 'new customer' affiliate deals but thinking of changing to another one I've just found (which is actually a few quid more, so a win for them!). There's only a few weeks to do it all, though (including porting my number). I guess I'm just worried because I haven't done this before.