Ella la compra. I don't think there are two object pronouns that can be used in this one sentence, so I would assume that the second pronoun was for another sentence.
Answer: (in bold&underlined)
<em>No</em><em><u> Compres</u></em><em> </em><em>ese abrigo; es muy cara.</em>
<em>No</em><em><u> Pagues</u></em><em> con la tarjeta de credito.</em>