Sim was great & can be topped up
Really easy to use. Make sure you do the registration so that calls and texts operate immediately. Simcorner details say the sum card can't be topped up after the 30 days but as the sum was registered with "3" in the UK I was able to top it up to have another 30 days at £10 for 10g data. As we are away for 8 weeks it was great being able to keep the same number.