Im afraid not. Because it doesnt register your calls untill upto 72 hours after youve made them. So there is no way of stopping calls and texts because you will have gone over but vodafone will not find out for about 3 days. Best thing to do is give vodafone a call and see the possibilities of increasing your calls and texts. there will be a way of giving you unlimited texts or calls with out having to pay more. all you have to do is not back down and theyll work something out for you. hope this helps.
Rachel
Merry Christmas xx
Rachel
Merry Christmas xx