https://community.three.co.uk/t5/Network/topup-problem/m-p/4892#M455 <P>Hey Shunsuke, welcome to Three Community.<BR /><BR />This certainly sounds strange, as that's a lot of data to use up instantly! Just to check, was your voucher adding £20 of cash credit to your account, or were you adding a 20GB data add-on to your plan?<BR /><BR />Can I also ask if you were&nbsp;<SPAN>in the UK when you used that top up voucher code?&nbsp;</SPAN>If not, can you let us know which country you're currently visiting?<BR /><BR />If you were in the UK, have you made use of any other chargeable services (such as competition entries via shortcode texts) that may have used up your credit very quickly?<BR /><BR />Have a think and let us know. We'll do all we can to help.</P> <P>StephR</P> Wed, 24 Aug 2022 14:55:59 GMT StephR 2022-08-24T14:55:59Z https://community.three.co.uk/t5/Network/topup-problem/m-p/4890#M454 <P>I used the voucher code to top up on Monday and got a message that the charge was completed and at the same time I got a message that the charge was used up and I could no longer connect to the internet via mobile communication.<BR />I would like to know the solution as I am not aware of any modern technology that allows 20GB of data transmission in less than a second!</P> Wed, 24 Aug 2022 12:28:11 GMT https://community.three.co.uk/t5/Network/topup-problem/m-p/4890#M454 Shunsuke 2022-08-24T12:28:11Z https://community.three.co.uk/t5/Network/topup-problem/m-p/4892#M455 <P>Hey Shunsuke, welcome to Three Community.<BR /><BR />This certainly sounds strange, as that's a lot of data to use up instantly! Just to check, was your voucher adding £20 of cash credit to your account, or were you adding a 20GB data add-on to your plan?<BR /><BR />Can I also ask if you were&nbsp;<SPAN>in the UK when you used that top up voucher code?&nbsp;</SPAN>If not, can you let us know which country you're currently visiting?<BR /><BR />If you were in the UK, have you made use of any other chargeable services (such as competition entries via shortcode texts) that may have used up your credit very quickly?<BR /><BR />Have a think and let us know. We'll do all we can to help.</P> <P>StephR</P> Wed, 24 Aug 2022 14:55:59 GMT https://community.three.co.uk/t5/Network/topup-problem/m-p/4892#M455 StephR 2022-08-24T14:55:59Z