Many online retailers charge “restocking fees” on returns if the

Many online retailers charge ???restocking fees??? on returns if the purchase price is refunded back to the customer's credit card, but charge no such fees if given as store credit.


A. if the purchase price is refunded back to the customer's credit card, but charge no such fees if given as

B. for purchases that are refunded to the customer's credit card, but not when those purchases are refunded as

C. when the purchase is refunded back to the customer's credit card, but not given in the form of

D. if the purchase price is refunded to the customer's credit card, but not if the refund is given as

E. whose purchase prices are refunded to the customer's credit card, and charge no such fees if refunded


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why can't A be the answer.. it can go like this: X charge ..... but charge .....
it satisfies parallelism