急求助，前两天下单，由于一双鞋4月2号才能到货所以一直没发货，已经扣款。结果今天发邮件说另一件商品缺货，但是没说处理方法。
求助我该怎么办，pds会在4月2号到货后只发那双鞋给我还是取消订单给我退款呢？我用不用进行操作还是邮件联系呢？
请大家赐教，感谢！
第一次pds就遇到这样的事。。。
附pds邮件：
Unfortunately we must apologise as there was a problem despatching your order due to stock availability. The problem is:-
Item(s) is not currently in stock and we have therefore placed your items(s) on backorder.
We apologise for not being able to fulfil this item and for any inconvenience caused. We hope you will find the time to visit our website at www.prodirectsoccer.com where you will be able to find many suitable alternatives.
Once again we apologise for any inconvenience caused.
