Declaring that they have the numbers and influence to bring about change, an activist group of anti-vaxxers and anti-mandate activists has given the Mia Mottley administration an ultimatum to respond to a two-month-old written request to discuss how the COVID-19 jab is administered.Coordinator of the Steering Committee for the Barbados Concerned Citizens (BCC), Winston Clarke, warned Monday that if he did not get a response by Wednesday to the letter sent to Prime Minister Mottley for a dialogue on possible mandatory vaccinations, the BCC will be ramping up its civil actions on several fronts.Buoyed by a weekend demonstration in which an estimated 2 000 people participated, Clarke declared that the 4 700 people who signed up to support the protest walk against vaccine intimidation at the weekend was only the tip of the iceberg. He said he expects more than 10 000 people to heed the next call-out if the Government fails to meet the deadline.