Service is terrible

I am really disappointed in your service. My mom purchased a laptop online on the 1st of April and was enquiring about it after the president announced that that non essential good van now be released and sold so far we could not get any help from the the call center they don't answer their calls ,don't respond to emails,spoke to more than 4 agents on that Vivocha .com chat website side they never came back to us. In the last 3days we could not even connect to that website it kept on saying no agents are available. I want a refund on the items that I bought please I'm not interested in the buying the item anymore.