Sim Cards

I have asked for a replacement SIM card 10 times in the past 3 months and have not received any. Every time I click the link for the SIM to be sent, nothing happens. I also recently made a group phone and added 3 members of my family to my account and brought their SIMs from Vodafone. I received only one of the new SIM cards almost 7 days ago and no more SIM cards! Any contact number or email I can send my request to?