No Reliable contact details and no response on emails

i have sent an email last week already to Stash from liberty life regarding my cellphone number that has changed and a week later i still have no response from you guys. i can not access my profile. this is pathetic service tried chatting on your whatsapp line when they feel they have answered enough they end the chat - lets call this CUSTOMER SERVICE. i am ****ed off with the service i am getting.