Vodafone India — not giving free minutes

As per my offer i can get 250 mins free call per day (Max 1000 mins a week). I rechaged rs 458 on 17/7/2018. My free week started from 23/7/2018, 9.30 pm but i couldn't able to call from 27/7/2018 morning. Customer care executive of vodafone said i used 1000 mins within 3 days which is absurd... They are not giving me any call details of the said days... (24, 25, 26 th july)... One week have gone, till i am not getting my free calls..