Give me all the phone numbers and email addresses of the workshop groups where services are performed.
SELECT T1.Store_Phone ,  T1.Store_Email_Address FROM Drama_Workshop_Groups AS T1 JOIN Services AS T2 ON T1.Workshop_Group_ID  =  T2.Workshop_Group_ID
Hizmetlerin gerçekleştirildiği atölye gruplarının tüm telefon numaralarını ve e -posta adreslerini verin.