help with bgp 2 isp

problem is the following have 2 isp net
1 Newcom
2 RTC

I do BGP with both class I announced bought mn / 22 IP addresses are the AS-number own ek problem when they connect with RTC BGP session all external traffic goes on RTC: ((with band in May mik work very hard

the session with the RTC automatically gives me underground and external default table any prefixes 7600
the session with Newcom I give only a prefix of a gateway

What to do if you can use it and external Newcom?? someone who understands! ms prior

my router is x86 mikrotik v 4.4 license level 5

sorry my poor engllish

announce one /23 network to Newcom, another /23 - to RTC