VAT rate change for Germany from 16% to 19%

Can you please advise how we get the tax rate for our clearbooks set up for German sister company updated from 16% to 19 % to comply ASAP? It is crucial we get this fixed ASAP since we can't produce correct invoices and therefore sell anything to customers from Germany ? I can't see any way to do this as a user. We are also missing a 'Zero rated' code for EC sales which is another problem. Thank you Lenka