Can I top up my French Orange payg SIM in the UK?

Unfortunately the French Orange Payg SIM can only be topped up with credit vouchers bought over the counter in France. You need to remember to top up within 6 months of the last top up otherwise the SIM and number will expire permanently. If you have purchased a voucher in France you may bring it back to the UK and add it to the handset providing you get good signal strength and the voucher is valid.