I have two triggers on Account

trigger noEditAfterSale on Account (before update) {
	
	//who is running this update
		String userid = UserInfo.getUserId();
		
		//check if this user is 
		Integer cu = [select count() from GroupMember where UserOrGroupId=:userid and Group.Name='canChangeAccountAfterSale'];
	
		//if they are not then check if they are allowed to update
		if (cu == 0){

			for (Account a : Trigger.new) {
				//count the active opportunites for this account
				Integer c = [select count() from Opportunity where Activated__c != null and AccountId=:a.Id];
		
				if (c > 0){
					a.addError('You cannot edit this account as it has activated opportunities. Please speak to Finance.');
				}
			}
		}
}

and

trigger setVatType on Account (before insert, before update) {
    /*When a country is selected by the user we need to update the input VAT Code
    	UK = VOSTD
    	EU = VOEXT
    	Other = ? */
    
    for (Account a : Trigger.new) {
		TMDR_FinancialForce.setVATCode(a); 
    }
}



public static void setVATCode(Account a){
	/*calculate the correct VAT code for this Account country*/
	String zone = '';
	if (a.Registered_Charity__c	== true){
    	    zone = 'VOEXT';
    	}
		
	else if (a.Billing_Country__c != null){
    
    		Country__c country = [select id,Vat_Zone__c from Country__c where id =:a.Billing_Country__c];
    				
    			
        	if (country.Vat_Zone__c == 'UK'){
            	    zone = 'VOSTD';
        	}
        	else{
            	    zone = 'VOEXT';
        	}
	}
	else{
		zone = 'VOSTD';
	}
    		
    	List <c2g__codaTaxCode__c> codes = [select ID from c2g__codaTaxCode__c where Name=:zone];
        if (codes.size() == 1){
        	a.c2g__CODAInputVATCode__c = codes[0].ID;
    	}
		
		
}

and

trigger TMDR_copyBillingAddress on Account (before insert, before update) {

	for (Account a : Trigger.new) {
		
		if (a.Billing_Country__c != null){
			Country__c country = [select Name from Country__c where ID=:a.Billing_Country__c limit 1];
			a.BillingCountry = country.Name;
		}
		a.BillingCity = a.Billing_City__c;
		a.BillingPostalCode = a.Billing_Postal_Code__c;
		a.BillingState = a.Billing_County__c;
		a.BillingStreet = a.Billing_Address_1__c + '\n' + a.Billing_Address_2__c + '\n' + a.Billing_Address_3__c + '\n' + a.Billing_Address_4__c;
		
	}
}

thanks for your help.