Vodafone — Customer service

I wanted to port my number to Vodafone from another service provider. I was a Vodafone user for over a decade and due to a very personal reason I shifted my service provider and now want to get back to Vodafone. I visited the nearest store Vi Store-CRS MYLAPOUR No 100, Old No 91/1, Venkatachala Mudhali Street, Mylapore, Chennai - 600004 . I was extremely disappointed with the service, the person Mr Vishnu and another lady were highly disinterested in solving my request. They were extremely rude and even asked me to do the porting at a recharge shop ! I’m so worried to get back to Vodafone now if this is the customer service I will receive. They scared me saying I will lose my number or service if I force them on porting.
The store staff should be reprimanded for their behavior.