False promise on delivery

I placed an online order for click and collect. Delivery with in 3-6 business days. On 24/3 Call centre gave me a reference number stating order is ready for courier and should be at the store in next 2 days. Said I must phone should I not get sms to collect within 24 hours. Phoned 24 hours later, to be cut off or put on hold forever. Finally got hold of a person who said order will only be delivered after easter weekend. Branch says its 9days for delivery. Bad service, false advertising and the dress I ordered is now late, so no use for it.