Sarah experiences sexism at the Bank?

Lord Sunderland[1] assured me that my lord Cowper would have the goodness to read this deed and tell me whether it answers the intention of it, which  I question because I found lately that I could not give my note in the bank as others do that have their fortune in their own power. I hope ‘tis unnecessary to make apology for this trouble since you have promised your friendship upon all occasions to your most faithful and most humble servant.

S. Marlborough

[1] Sarah’s son-in-law, married to her daughter Anne.  Strongly Whiggish, disliked by Queen Anne.