Reliance Jio Infocomm — recharge validity problem

I recharge jio 498 on my jio number [protected] on 4 april 2018 and at that time I got a massage of validity 84 days but on 1/5/2018 i got a massage that inform your validity expired on 1/5/2018...why? Chiting with customers... Jio is third class company... Why 84 days validity transfer automatically in28 days? And my call to customer service of jio disconnect automatically after 15 seconds talks with care officer... Bad service... I am not happy and satisfied with jio...