The problem is the label "Telemarketers" contains reserved characters. In a digit map you can use any combination of 0-9,*,#,+,-,A-Z,a-z, except m, M, s, S, x, X which have special meaning in the digit map syntax.
You can overcome this by enclosing the reserved characters in single apostrophes, but much easier to use a label with no reserved characters. How about:
Label: ban
DigitMap: (1234567890|0987654321)
X_InboundCallRoute:
{(?|x|xx|xxx|xxxx|xxxxx|xxxxxx|un@@.|Un@@.|anon@@.|Anon@@.|Mban):},{ph}